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UK SIM not working even though phone is Unlocked

Ok so I am in the UK right now for the summer. Before I left I unlocked my phone and when I got here I went and bought a pay as you go 3 SIM card since they offer all you can use data and all.
The guy at the store said to wait 20 min then call 444 to register the card. After 20 minutes or so I still had no signal on my phone. I went into settings > Wireless > Mobile > Select network and selected 3 but it said "this SIM card could not be registered on this network." Same thing if I selected automatically. So I decided to try a friends Vodaphone pay as you go card in my phone. The Vodaphone card works perfect, I can make calls, send sms, etc.
So I went back to the store the next day to see what they say. The employee put the SIM in her phone and it worked perfect, which means that there is something wrong with my phone.
I went back and decided to unroot then reroot and unlock. After encountering multiple problems with that I have finally gotten back to root and unlock but the 3 SIM card still does not work while the Vodaphone one does.
Is there anything I can do from here to get the 3 SIM to work?

What rom are you using?

sorry forgot to mention that. Right now I am on the stock rom and stock radio. I tried flashing another radio and using the SIM card on Leedroid and RCmix HD and nether of those worked.

Have you try selecting different band like EURO band (may be worth a try )

pakxelaos said:
Have you try selecting different band like EURO band (may be worth a try )
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not exactly sure what that means, do you have a link handy, please? I am willing to try anything, as long as it does not brick my phone.

Open Phone Dialer
Dial: *#*#4636#*#*
Press Phone Information
Hit Menu
Choose Select Radio Band
Choose EURO Band
Turn on Airplane Mode for about 20 seconds and then turn it off

pakxelaos said:
Open Phone Dialer
Dial: *#*#4636#*#*
Press Phone Information
Hit Menu
Choose Select Radio Band
Choose EURO Band
Turn on Airplane Mode for about 20 seconds and then turn it off
Click to expand...
Click to collapse
No still did not work thanks though for trying. I also restarted the phone, reselected the EURO band and put on airplane mode but still nothing.
Any other suggestions?

dreshden said:
No still did not work thanks though for trying. I also restarted the phone, reselected the EURO band and put on airplane mode but still nothing.
Any other suggestions?
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Click to collapse
Have you tried the 3 SIM in a different phone perchance? It seems like the unlock and the Inspire are working as the Vodafone SIM worked.

I agree, maybe there's something different about that sim that the Inspire can't read it.
id10terrordfw said:
..
It seems like the unlock and the Inspire are working as the Vodafone SIM worked.
Click to expand...
Click to collapse

id10terrordfw said:
Have you tried the 3 SIM in a different phone perchance? It seems like the unlock and the Inspire are working as the Vodafone SIM worked.
Click to expand...
Click to collapse
Yes I took it back into the store to see what they would say/try to get a refund. They store employee put it into her phone and one of her coworker's phones and the it worked fine in their phones. I do know exactly what kind of phones they had since they were for sure Euro only models that I have never seen before but one of them was a Samsung with a touch screen and keyboard, much like a blackberry. Not really relevant to this, I think.
They would not give me a refund since it work in their phones. Which is why I am here stuck with a 3 SIM card and looking for help to get it fixed

Well that at least establishes where the problem is. When you boot the phone with the 3 SIM, does it give a "no sim" error, no signal at all , or no data access(voice/999 still work)?

When I first put in the sim it gives me a popup saying "Unable to detect your SIM card. Please make sure that your SIM card is properly inserted and restart the phone." It gives two options, Shut phone down and Restart. It also says this when I put the Vodaphone card back into the phone. I just have to restart the phone and I will have signal when I have the Vodaphone card in.
So I click restart. After it reboots, I have no signal (grayed out bars with a small 'x' above them). In my notification tray I have 2 new notifications. One saying that my SIM card has changed and another saying there is a sign in error to my gmail account.
If I click on the "SIM car changed" notification it gives me a pop up saying "You have insterted a new SIM card. Your phone will change the following settings according to your SIM card: bookmarks, shortcuts, wallpapers, ringtones, language selections, and input settings. Are you sure you want to replaces these settings on your phone?" Then it gives me 3 options, "Yes" "No, later" and "No."
I do not get any other notifications or error messages after a restart.

Backup your ROM then try flashing cm7 and see what happens, with the 3 SIM in the phone.
Sent from my HTC Inspire 4G using XDA Premium App

Ok I wiped everything and installed nightly #77 with the 3 SIM card in the phone the whole time. It has been 2 hours and I have not taken out the card yet and it is still not receiving service. So I have no idea where to go from here.
If there is nothing else I guess I will just have to suck it up and go spend some more pounds and get a Vodaphone card for myself.
Thanks for the help and if there is anything else you can think of for me to try please, I am open to all suggestions!

dreshden said:
Ok I wiped everything and installed nightly #77 with the 3 SIM card in the phone the whole time. It has been 2 hours and I have not taken out the card yet and it is still not receiving service. So I have no idea where to go from here.
If there is nothing else I guess I will just have to suck it up and go spend some more pounds and get a Vodaphone card for myself.
Thanks for the help and if there is anything else you can think of for me to try please, I am open to all suggestions!
Click to expand...
Click to collapse
If they won't swap it out for you than I would say that is the best bet. I know for a fact that cm7 supports 3. There has to be some other factor affecting it. Did you have the 3 guys try their SIM cards in your phone?
Sent from my HTC Inspire 4G using XDA Premium App

No they did not, that is the only thing. They never put their card into my phone.
*sigh* I was really hoping for unlimited data because that would have been soooo helpful to be able to use maps while wandering the city. I guess this just was not meant to be.
Thank you so much for all the help! I really appreciate it!

[Q] Sidekick won't connect to network since OTA

Seems like the OTA to KJ2 disconnected sidekick from the network? The sim isn't bad put it back into my Vibrant with no issues. Rooted then flashed sk with 3 different rom/modem combos anyone have an idea how i can fix this or if I can? Thanks.

Put the phone in flight mode first take off the the wifi clear cache leave flight mode n turn on internet wdcma n gsm together if not. Go to recovery n wipe all dat
Sent from my SGH-T839 using XDA App

Thanks for the reply tried all of that including wiping the phone clean more than once. Just keeps telling me that sim cannot be used on the network or error searching network.

used a different sim card then

Believe it or not I did that too. Maybe its just hardware related in which case I'm probably just screwed.

Same issue
I have the exact same issue. Did you get this resolved? I sent my S4G back to Samsung and they returned it stating they updated the software. The problem still hasnt been resolved. I called them back today and explained my frustration and they said they do not have sim cards to actually test the phone and see if it will connect to the network. I am now sending it back a second time and they said this time they will replace the mother board.
Mark

I just wiped all data. And it worked
Sent from my SGH-T839 using XDA App

Did they replace the mother board? Did it work?
Did they charge you for the service?

Sim Card/Network Registration Delay Issue

Hello,
I have an unlocked Sensation 4G. Its been working perfectly on the Bell Mobility network (was originally locked to Bell).
I am selling this phone as "unlocked" so I decided to double check that another sim would work before I potentially embarrass myself in front of the buyer.
I threw in my wifes Rogers Sim and it was detected (i.e. there was no indication of "no sim") however there were no bars and I couldnt search or register on any network.
I re-seated the sim a few times and rebooted a few times...then while searching for a resolution on xda, all of a sudden I hear a text come in and there was full bars..etc.
My question is: does it just take some time to register on certain networks for the first time, i.e. is this delay normal?
In the event this happens when I sell the phone, does rebooting actually help? or is it just the matter of letting the phone sit for x amount of time to search and setup APN's etc?
Thanks!

I believe it does take some time to format.
Sent from my HTC Sensation Z710e using xda premium

Thank you! Appreciate it
Sent from my HTC PH39100 using XDA

[Q] Network connection cuts out - Not registered on network

I have read a few threads about this issue, but none of them seem to be the same exact problem..
Right now I am running ParanoidAndroid 2.15 with InstigatorX 6.3.6 kernel.
When I first noticed the problem I was on PA 2.13/IX 6.3.6 I believe and I was using the UCLF6 modem.
My network connection was fine until one day I noticed that I had 0 connectivity and when I tried to make a phone call it said I wasn't registered on the network.
Sooo the issue..
My network connection constantly shows that I am not connected to the ATT network, sometimes the network is out for a good 5 minutes or so before it connects to it again. When it does connect to the network it usually shows up as connected to the Edge network..once in a while it will show 3g; I used to have full bars of 4g/hspa.
After a few minutes go by, the network connection cuts off and I am again once disconnected from the network.
From the time I had no problem with my connection to when it started disconnecting from the network I have no idea what happened.
Yes, I do flash ROMs a lot, but this seemed to happen over night. (I had not messed with my ROM for a good while and then BAM my network blows 'all of a sudden')
Things I have tried..
I have tried different roms, different modems, I have tried the whole airplane mode deal, tried pulling the batter, I have reverted back to stock using Odin and the stock ROM file. My IMEI number shows up correctly, my settings are default as far as allowing data connections ect.
I am not sure if there is anything I can do besides call up the warranty department and try and get a new phone, but I wanted to ask here before I did that.. I've already returned my phone like 2 or 3 times since February lol.

Try getting a new SIM card from AT&T. There is a $10 fee for it, but I had a similar problem and this fixed it for me. My phone would lose service and say "No SIM card inserted" then I would hit restart and everything would work except phone calls. I had to remove the SIM for a few minutes and put it back in in order to make or receive calls.
Sent from my SGH-I727 using xda app-developers app

Not sure if this will help or not, but in the past I have had AT&T "re-initialize" my phone on their end and it has fixed some connectivity issues.
Good luck!

Well dang, I was wishing and a praying I'd come back to some good news lol. Oh well

mtu_husky said:
Not sure if this will help or not, but in the past I have had AT&T "re-initialize" my phone on their end and it has fixed some connectivity issues.
Good luck!
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Click to collapse
happened to me today. att rep told me i need ti turn gps on all the time bulls***!
Sent from my SAMSUNG-SGH-I727 using xda premium

Backup and odin back to stock I727UCLF6 and see if the problem goes away. If yes then its possible you need to look for the AT&T LTE APN settings.

askpcguy said:
Backup and odin back to stock I727UCLF6 and see if the problem goes away. If yes then its possible you need to look for the AT&T LTE APN settings.
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Click to collapse
I've tried using Odin to stock ICS and also GB, but the problem still occurs =\

Did you unlock it?
Hey,
Did you unlock the phone? I have a similar issue, having had tried many different modems kernels and ROMs including the stock ones. It turns out that if the phone is unlocked then it will lose connectivity to lte and 3g. I get edge sometimes and one bar max but I cannot make a call out ever.
Unlocked it as I was travelling in the states and now Roger's says I voided my warranty by unlocking it. Tried a different sim card but I am only able to text right now, no calls. The only silver lining is the big three are starting to lower their prices a bit to compete with new competitors.Then again they make budget brands like koodo and public mobile to directly compete with the new entrants so unless the crtc steps in looks like we'll always get gouged.

canadianclub said:
Hey,
Did you unlock the phone? I have a similar issue, having had tried many different modems kernels and ROMs including the stock ones. It turns out that if the phone is unlocked then it will lose connectivity to lte and 3g. I get edge sometimes and one bar max but I cannot make a call out ever.
Unlocked it as I was travelling in the states and now Roger's says I voided my warranty by unlocking it. Tried a different sim card but I am only able to text right now, no calls. The only silver lining is the big three are starting to lower their prices a bit to compete with new competitors.Then again they make budget brands like koodo and public mobile to directly compete with the new entrants so unless the crtc steps in looks like we'll always get gouged.
Click to expand...
Click to collapse
Unlock it as in use it with a different carrier right? No I havent done that, just rooted it.
I've never had any problems with my connection until this JB rom I had on it =\

But have you verified the imei shown in settings > status is the same as what is on the sticker under the battery?
Sent from my SGH-I727 using xda premium

askpcguy said:
But have you verified the imei shown in settings > status is the same as what is on the sticker under the battery?
Sent from my SGH-I727 using xda premium
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Click to collapse
Yes, they are the same :crying:

Are you able to rule out the sim card as the problem?
Sent from my SGH-I727 using xda premium

askpcguy said:
Are you able to rule out the sim card as the problem?
Sent from my SGH-I727 using xda premium
Click to expand...
Click to collapse
I'm not 100%, but I don't have any warnings about my SIM card or anything

Same boat
I'm having the same issue with my Galaxy Note 717r on Canadian carriers Rogers and Telus
I keep getting the Error 'Not registered on Network'
On Rogers, if I select GSM only, it will register on the Network and connect with EDGE speeds
It has been Carrier unlocked at some point but it was working that way for a while. You can check by using this service code: *#7465625#
Tried multiple SIM cards that work with other phones.
Verified that the IMEI number matches what is on the sticker *#06# Rogers told me if I can make calls on the GSM network than the IMEI isn't blocked. Don't know if that's true but it makes sense.
Went back to stock everything (Modem, CSC, ROM) then I upgraded to ICS OTA.
Enable SIM lock, Disabled SIM lock.
How do you know that carrier unlocking blocks you on the 3G/LTE networks? Can the carrier be relocked?
I've got another 717r coming to me. I think I'll try backing up the EFS folder and restoring it on this phone just to verify it's not corrupt or a blocked IMEI.

pot srarnewi
tweebs said:
I'm having the same issue with my Galaxy Note 717r on Canadian carriers Rogers and Telus
I keep getting the Error 'Not registered on Network'
How do you know that carrier unlocking blocks you on the 3G/LTE networks? Can the carrier be relocked?
Click to expand...
Click to collapse
I'm not sure about that one.
But what ROM do you use? It seems like this only happens with people who have JB ROMs..it looks like..
I just called ATT , they did some kind of wireless number reset, nothing happened.
They are going to send me a new SIM card which I can test and see if that fixes the problem, but I'm not going to hold my breath though.

I just called ATT , they did some kind of wireless number reset, nothing happened.
They are going to send me a new SIM card which I can test and see if that fixes the problem, but I'm not going to hold my breath though.
Click to expand...
Click to collapse
I am having the same issue. Did you receive the SIM card and did it fix it?

Try going to retail at&t store and show them. Get you a new device.
Sent from my SGH-I727 using xda premium

Lost Recognition of Sim card after 5.0.1 Update

Hi all. Did the update to my Shield now my tablet does not recognize my Sim card. Tried same Sim card on my iPad and it works so this means that there is something wrong with my Shield.
By the way my tablet was not rooted, only the bootloader was unlocked. Did the update through the update manager of my tablet and all seemed good until the Sim card issues. Any ideas?
Sent from my HTC One_M8 using Tapatalk

Maybe you flashed a wifi-only ROM ?

This was already a problem in the first Lollipop ota update. I had to factory reset, wipe cache to get the sim to be detected consistently. This was not an issue at all on Kit Kat.
It happens whenever the cellular data is turned off or tablet is in airplane mode for a prolonged period of time.

Will try and wipe cache as well and see what happens
Sent from my HTC One_M8 using Tapatalk

FYI...this still happens on my set from time to time which is currently on Lollipop 5.01

Hi all,
Same thing for me.
Not possible to get sim card connected, it looks like there is none.
The signal appear and disappear ramdomly for both a long time!!!
This happen still the last 5.0.1 update.

fchagnon said:
Hi all,
Same thing for me.
Not possible to get sim card connected, it looks like there is none.
The signal appear and disappear ramdomly for both a long time!!!
This happen still the last 5.0.1 update.
Click to expand...
Click to collapse
Just got a new Shield Tablet from Nvidia. Nothing I tried with my old one seemed to help. So if this is happening to you, I suggest you call Nvidia.

Same problem here after OTA 2.2. My o2 SIM is not detected anymore. 2.2.1 didn't solve the problem. This tablet is just a piece of crap! Noise from the GPU, GSM noise trough the speakers (well, GSM was working there) and now this. Brilliant work Nvidia, thumbs up!

any solution?? or new info?

I had to turn on data roaming to get it to recognize my Sim, then I had to make my net10 APN twice and then delete both at&t apn's before I got my data/SMS working. I can't guarantee it'll work, but it's something, at least.
Sent from my SHIELD Tablet using XDA Free mobile app